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# Copyright 2014 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
import os
import sys
import unittest
sys.path.append(os.path.join(os.path.dirname(__file__), os.pardir, os.pardir))
from pylib import android_commands
from pylib.device import device_utils
from pylib.perf import perf_control
class TestPerfControl(unittest.TestCase):
def setUp(self):
if not os.getenv('BUILDTYPE'):
os.environ['BUILDTYPE'] = 'Debug'
devices = android_commands.GetAttachedDevices()
self.assertGreater(len(devices), 0, 'No device attached!')
self._device = device_utils.DeviceUtils(
android_commands.AndroidCommands(device=devices[0]))
def testForceAllCpusOnline(self):
perf = perf_control.PerfControl(self._device)
cpu_online_files = self._device.RunShellCommand(
'ls -d /sys/devices/system/cpu/cpu[0-9]*/online')
try:
perf.ForceAllCpusOnline(True)
for path in cpu_online_files:
self.assertEquals('1',
self._device.old_interface.GetFileContents(path)[0])
mode = self._device.RunShellCommand('ls -l %s' % path)[0]
self.assertEquals('-r--r--r--', mode[:10])
finally:
perf.ForceAllCpusOnline(False)
for path in cpu_online_files:
mode = self._device.RunShellCommand('ls -l %s' % path)[0]
self.assertEquals('-rw-r--r--', mode[:10])
if __name__ == '__main__':
unittest.main()
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